N3LO extraction of the Sivers function from SIDIS, Drell-Yan and W$+$-/Z data.
ORAL
Abstract
We perform the global analysis of polarized Semi-Inclusive Deep Inelastic Scattering (SIDIS), pion-induced polarized Drell-Yan (DY), and W$+$-/Z boson production data and extract the Sivers function for u, d, s, and and for sea-quarks. We use the framework of transverse momentum dependent factorization at NLO accuracy. The Qiu-Sterman function is determined in a model-independent way from the extracted Sivers function. We also evaluate the significance of the predicted sign change of Sivers function in DY with respect to SIDIS.
*This work was partially supported by DFG FOR 2926 ``Next Generation pQCD for Hadron Structure: Preparing for the EIC'', project number 430824754 (M.B and A.V) and by the National Science Foundation under the Contract No.~PHY-2012002 (A.P.), and by the US Department of Energy under contract No.~DE-AC05-06OR23177 (A.P.) under which JSA, LLC operates Jefferson Lab, and within the framework of the TMD Topical Collaboration (A.P.)
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